Charm Solo ENC

[Dalmon]

Hey i was wondering how exp works with pets and such.

I was under the impression that if I solo something, i need to do 51% of its health for full exp, but if im grouped then as long as there is 1 player dmg from anyone in the group its full.

So if this is the case, is it not good to let a charm beat something down beyong 50% of its life? How bad is the penalty for letting him do more dmg than me to a mob while solo

Thanks!